How to Choose a Commercial Kitchen Sink
Jun 23, 2026
Commercial Kitchen Equipment Buying Guide

How to Choose a Commercial Kitchen Sink

This commercial kitchen sink buying guide explains how to select bowl quantity, overall size, bowl depth, drainboard direction, stainless steel grade, undershelf structure and dishwasher space for restaurant and catering projects.

Single or Double BowlLeft or Right DrainboardSUS304 / SUS201Dishwasher Space
Knowledge/Buying Guide/Commercial Kitchen Sink Buying Guide
Common Materials
SUS304 / SUS201
Common Bowl Depth
250–300 mm
Common Sink Depth
600 / 700 mm
Common Working Height
850 + 100 mm
Begin with the Washing Process

The Correct Sink Follows the Workflow

When deciding how to choose a commercial kitchen sink, begin with the items being washed, the required washing stages, available aisle space, water supply, drainage position and the equipment placed beside the sink. Bowl quantity and drainboard direction should follow the real operating sequence.

01
What Is Washed?

Pots, plates, trays, vegetables, meat and utensils create different bowl-size and hygiene requirements.

02
How Many Stages?

A double bowl or dishwasher connection may be needed when washing and rinsing must remain separate.

03
Where Is the Drain?

Confirm the water inlet, floor drain, wall clearance and pipe route before fixing the final position.

04
Which Side Drains?

Select a left or right drainboard according to staff movement and the next step in the kitchen line.

05
What Goes Below?

Choose an undershelf, enclosed cabinet or open dishwasher space according to storage and equipment needs.

Step 1: Compare Real Product Structures

Select the Sink Type by the Actual Washing Station

The products below are taken from Guangjie’s current sink pages. Compare bowl quantity, drainboard, lower structure and dishwasher arrangement before confirming dimensions.

Single-bowl and double-bowl configurations remain within the same product family when the main difference is bowl quantity or overall size. Drainboard, cabinet and dishwasher-space structures require separate purchasing checks.

Step 2: Commercial Kitchen Sink Sizes

Match the Overall Size and Bowl Size

Commercial kitchen sink sizes should be checked at two levels: the overall frame dimension and the internal bowl dimension. A large outer size does not always mean a larger usable bowl if a drainboard or equipment space is included.

The figures shown are reference ranges from Guangjie Chinese style sink models. Final dimensions, bowl construction and backsplash height should be confirmed before production.

Sink Type
Reference Overall Size
Reference Bowl Size
Single Bowl
600×600 or 700×700
Height 850 + 100 mm
400×400×300 or 500×500×300 mm
Single + Drainboard
1200×600 or 1200×700
Height 850 + 100 mm
500×400×250 or 500×500×300 mm
Double Bowl
1200×600 or 1200×700
Height 850 + 100 mm
500×400×300 or 500×500×300 mm per bowl
Double + Drainboard
1800×600 or 1800×700
Height 850 + 100 mm
500×400×300 or 500×500×300 mm per bowl
Step 3: Material and Bowl Construction

SUS304 vs SUS201 Kitchen Sink

Material grade should reflect water exposure, cleaning chemicals, hygiene expectations, expected service life and project budget.

WET AND FREQUENTLY WASHED AREAS

SUS304 Stainless Steel

Preferred for dishwashing rooms, central kitchens, food processing preparation and projects with higher corrosion-resistance requirements.

Recommended where the sink is exposed to water and cleaning every day.
COST-CONTROLLED PROJECTS

SUS201 Stainless Steel

Can be considered for budget-sensitive projects where maintenance is controlled and aggressive cleaners or long-term moisture are avoided.

Cleaning, drying and operating environment must be confirmed before selection.

Moulded Bowl

A formed bowl can provide a smooth, consistent shape with fewer welded seams. Confirm available standard bowl sizes and drain location.

Welded Bowl

Welded construction offers more dimensional flexibility. Ask how corners, weld seams, polishing and drainage slope are finished.

Step 4: Drainboard Direction

Left or Right Should Follow Staff Movement

Determine the direction while standing in front of the sink. The drainboard should support the actual movement from dirty items to washing, rinsing, draining or loading into a dishwasher.

Dirty Items
Pre-Rinse
Wash Bowl
Rinse Bowl
Drainboard

Reverse the direction when the kitchen line or dishwasher is arranged from the opposite side.

Step 5: Complete the Structure

Backsplash, Undershelf, Legs and Accessories

Backsplash

Helps reduce water reaching the wall. Confirm height, rear clearance and whether wall-mounted faucets or pipework need space.

Undershelf

Provides storage for baskets, detergents and tools. Open structures also make the pipe and drain route easier to inspect.

Legs and Feet

Adjustable feet help level the sink and maintain drainage slope on uneven floors. Confirm tube structure and installation method.

Faucet and Drain

Confirm faucet holes, inlet connection, waste outlet position, strainer, flexible hose and any pre-rinse spray requirement.

Step 6: Dishwasher Compatibility

Confirm the Machine Before Fixing the Sink Unit

A commercial dishwasher sink unit must be designed around the actual machine rather than a generic open space. Machine dimensions and service clearances affect the sink frame and drainboard.

Guangjie catalog references include a 600 mm dishwasher void in several sink-unit configurations, but the final opening must match the confirmed dishwasher model.

Dishwasher Information Required
Machine width, depth and height
Door opening and service clearance
Water inlet and drain position
Electrical connection and cable route
Left or right machine position
Rack loading and unloading direction
Quotation Checklist

Information to Prepare Before Requesting a Quote

A complete inquiry allows the supplier to confirm the correct bowl, frame, drainboard, accessories and packing structure.

Single or double bowlOverall sink dimensionBowl size and depthLeft or right drainboardSUS304 or SUS201Actual material thicknessMoulded or welded bowlUndershelf or cabinetFaucet and drain partsDishwasher model if applicableQuantity and destination port
Common Purchasing Mistakes

Five Details That Often Cause Rework

Selecting Only by Overall Length

The usable bowl, drainboard and dishwasher space must be checked separately.

Reversing the Drainboard Direction

Left and right should be confirmed from the operator’s front-facing position.

Ignoring Bowl Depth

A shallow bowl may splash during pot washing, while an unnecessarily deep bowl can affect working posture.

Quoting Dishwasher Space Without a Model

Machine size, door travel, connection points and ventilation clearance must be confirmed.

Comparing Price Without Comparing Construction

Material grade, actual thickness, bowl type, frame reinforcement, weld finishing and accessories all affect value.

FAQ

Commercial Kitchen Sink Buying Questions

What size commercial kitchen sink should I choose?

Choose the overall size according to available space, then confirm bowl width, length and depth according to the largest items being washed.

Is a single bowl or double bowl sink better?

A single bowl saves space, while a double bowl supports separate washing and rinsing or different preparation tasks.

How deep should a commercial sink bowl be?

Guangjie Chinese style model references include bowl depths of approximately 250–300 mm. The correct depth depends on pot size, splash control and staff working posture.

Should a commercial sink use SUS304?

SUS304 is commonly recommended for wet, frequently cleaned and hygiene-sensitive areas. SUS201 may suit cost-sensitive applications when the environment and maintenance are appropriate.

Can the sink and drainboard direction be customized?

Yes. Bowl quantity, size, drainboard direction, undershelf, cabinet, backsplash, faucet holes and dishwasher space can be confirmed according to the project.

Need a Commercial Sink Recommendation?

Send the Kitchen Layout and Washing Requirements

As a commercial kitchen sink supplier, Guangjie can confirm bowl quantity, dimensions, material, drainboard, undershelf, dishwasher space and packing according to your project.

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